---
id: CVE-2026-83938
title: Azure Kubernetes Configuration Service Elevation of Privilege Vulnerability
summary: >-
  Missing authentication for critical function in Azure Kubernetes Configuration
  Service allows an unauthorized attacker to elevate privileges over a network.
severity: critical
cvss: 10
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'
cvssSource: cna
cwe:
  - CWE-306
vendor: Microsoft
product: Azure Kubernetes Configuration Service
affected:
  - azure_kubernetes_configuration_service -
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T22:13:58.415Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-83938'
references:
  - url: 'https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83938'
    label: >-
      Azure Kubernetes Configuration Service Elevation of Privilege
      Vulnerability
tags:
  - cve.org
ingestedAt: '2026-10-22T22:00:50.454Z'
---

## Overview

Missing authentication for critical function in Azure Kubernetes Configuration Service allows an unauthorized attacker to elevate privileges over a network.

## Affected

- `azure_kubernetes_configuration_service -`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.